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Description: Clang 17 and newer crash on arm64
Forwarded: https://github.com/swiftlang/swift/issues/70345
--- a/swift/lib/IRGen/GenDecl.cpp
+++ b/swift/lib/IRGen/GenDecl.cpp
@@ -4810,8 +4810,11 @@
assert(ObjCInterop);
LinkEntity entity = LinkEntity::forObjCMetadataUpdateFunction(classDecl);
- llvm::Function *&entry = GlobalFuncs[entity];
- if (entry) {
+ auto found = GlobalFuncs.find(entity);
+ llvm::Function *entry = nullptr;
+
+ if (found != GlobalFuncs.end()) {
+ entry = found->second;
if (forDefinition) updateLinkageForDefinition(*this, entry, entity);
return entry;
}
@@ -4820,6 +4823,7 @@
Signature signature(ObjCUpdateCallbackTy, llvm::AttributeList(), DefaultCC);
LinkInfo link = LinkInfo::get(*this, entity, forDefinition);
entry = createFunction(*this, link, signature);
+ GlobalFuncs.insert({entity, entry});
return entry;
}
@@ -4853,8 +4857,11 @@
IRGen.noteUseOfTypeMetadata(Nominal);
LinkEntity entity = LinkEntity::forTypeMetadataAccessFunction(type);
- llvm::Function *&entry = GlobalFuncs[entity];
- if (entry) {
+ auto found = GlobalFuncs.find(entity);
+ llvm::Function *entry = nullptr;
+
+ if (found != GlobalFuncs.end()) {
+ entry = found->second;
if (forDefinition) updateLinkageForDefinition(*this, entry, entity);
return entry;
}
@@ -4865,6 +4872,7 @@
Signature signature(fnType, llvm::AttributeList(), SwiftCC);
LinkInfo link = LinkInfo::get(*this, entity, forDefinition);
entry = createFunction(*this, link, signature);
+ GlobalFuncs.insert({entity, entry});
return entry;
}
@@ -4880,16 +4888,19 @@
auto fnType = llvm::FunctionType::get(OpaqueTypeDescriptorPtrTy, {}, false);
Signature signature(fnType, llvm::AttributeList(), SwiftCC);
- llvm::Function *&entry = GlobalFuncs[entity];
- if (entry) {
- if (forDefinition)
- updateLinkageForDefinition(*this, entry, entity);
+ auto found = GlobalFuncs.find(entity);
+ llvm::Function *entry = nullptr;
+
+ if (found != GlobalFuncs.end()) {
+ entry = found->second;
+ if (forDefinition) updateLinkageForDefinition(*this, entry, entity);
return FunctionPointer::forDirect(FunctionPointer::Kind::Function, entry,
nullptr, signature);
}
LinkInfo link = LinkInfo::get(*this, entity, forDefinition);
entry = createFunction(*this, link, signature);
+ GlobalFuncs.insert({entity, entry});
return FunctionPointer::forDirect(FunctionPointer::Kind::Function, entry,
nullptr, signature);
}
@@ -4908,8 +4919,11 @@
auto type = nominal->getDeclaredType()->getCanonicalType();
assert(type->hasUnboundGenericType());
LinkEntity entity = LinkEntity::forTypeMetadataAccessFunction(type);
- llvm::Function *&entry = GlobalFuncs[entity];
- if (entry) {
+ auto found = GlobalFuncs.find(entity);
+ llvm::Function *entry = nullptr;
+
+ if (found != GlobalFuncs.end()) {
+ entry = found->second;
if (forDefinition) updateLinkageForDefinition(*this, entry, entity);
return entry;
}
@@ -4937,6 +4951,7 @@
Signature signature(fnType, llvm::AttributeList(), SwiftCC);
LinkInfo link = LinkInfo::get(*this, entity, forDefinition);
entry = createFunction(*this, link, signature);
+ GlobalFuncs.insert({entity, entry});
return entry;
}
@@ -4953,10 +4968,11 @@
LinkEntity entity =
LinkEntity::forPrespecializedTypeMetadataAccessFunction(theType);
- llvm::Function *&entry = GlobalFuncs[entity];
- if (entry) {
- if (forDefinition)
- updateLinkageForDefinition(*this, entry, entity);
+ auto found = GlobalFuncs.find(entity);
+ llvm::Function *entry = nullptr;
+ if (found != GlobalFuncs.end()) {
+ entry = found->second;
+ if (forDefinition) updateLinkageForDefinition(*this, entry, entity);
return entry;
}
@@ -4969,6 +4985,7 @@
Signature signature(functionType, llvm::AttributeList(), SwiftCC);
LinkInfo link = LinkInfo::get(*this, entity, forDefinition);
entry = createFunction(*this, link, signature);
+ GlobalFuncs.insert({entity, entry});
return entry;
}
@@ -5401,8 +5418,10 @@
IRGenModule::getAddrOfTypeMetadataInstantiationFunction(NominalTypeDecl *D,
ForDefinition_t forDefinition) {
LinkEntity entity = LinkEntity::forTypeMetadataInstantiationFunction(D);
- llvm::Function *&entry = GlobalFuncs[entity];
- if (entry) {
+ auto found = GlobalFuncs.find(entity);
+ llvm::Function *entry = nullptr;
+ if (found != GlobalFuncs.end()) {
+ entry = found->second;
if (forDefinition) updateLinkageForDefinition(*this, entry, entity);
return entry;
}
@@ -5442,6 +5461,7 @@
Signature signature(fnType, llvm::AttributeList(), DefaultCC);
LinkInfo link = LinkInfo::get(*this, entity, forDefinition);
entry = createFunction(*this, link, signature);
+ GlobalFuncs.insert({entity, entry});
return entry;
}
@@ -5449,8 +5469,10 @@
IRGenModule::getAddrOfTypeMetadataCompletionFunction(NominalTypeDecl *D,
ForDefinition_t forDefinition) {
LinkEntity entity = LinkEntity::forTypeMetadataCompletionFunction(D);
- llvm::Function *&entry = GlobalFuncs[entity];
- if (entry) {
+ auto found = GlobalFuncs.find(entity);
+ llvm::Function *entry = nullptr;
+ if (found != GlobalFuncs.end()) {
+ entry = found->second;
if (forDefinition) updateLinkageForDefinition(*this, entry, entity);
return entry;
}
@@ -5468,6 +5490,7 @@
Signature signature(fnType, llvm::AttributeList(), SwiftCC);
LinkInfo link = LinkInfo::get(*this, entity, forDefinition);
entry = createFunction(*this, link, signature);
+ GlobalFuncs.insert({entity, entry});
return entry;
}
@@ -5635,8 +5658,10 @@
ForDefinition_t forDefinition) {
LinkEntity entity = LinkEntity::forValueWitness(abstractType, index);
- llvm::Function *&entry = GlobalFuncs[entity];
- if (entry) {
+ auto found = GlobalFuncs.find(entity);
+ llvm::Function *entry = nullptr;
+ if (found != GlobalFuncs.end()) {
+ entry = found->second;
if (forDefinition) updateLinkageForDefinition(*this, entry, entity);
return entry;
}
@@ -5644,6 +5669,7 @@
auto signature = getValueWitnessSignature(index);
LinkInfo link = LinkInfo::get(*this, entity, forDefinition);
entry = createFunction(*this, link, signature);
+ GlobalFuncs.insert({entity, entry});
return entry;
}
@@ -6058,8 +6084,10 @@
LinkEntity entity =
LinkEntity::forGenericProtocolWitnessTableInstantiationFunction(conf);
- llvm::Function *&entry = GlobalFuncs[entity];
- if (entry) {
+ auto found = GlobalFuncs.find(entity);
+ llvm::Function *entry = nullptr;
+ if (found != GlobalFuncs.end()) {
+ entry = found->second;
if (forDefinition) updateLinkageForDefinition(*this, entry, entity);
return entry;
}
@@ -6070,6 +6098,7 @@
Signature signature(fnType, llvm::AttributeList(), DefaultCC);
LinkInfo link = LinkInfo::get(*this, entity, forDefinition);
entry = createFunction(*this, link, signature);
+ GlobalFuncs.insert({entity, entry});
return entry;
}
@@ -6081,8 +6110,10 @@
ForDefinition_t forDefinition) {
LinkEntity entity =
LinkEntity::forProtocolWitnessTableLazyAccessFunction(conf, conformingType);
- llvm::Function *&entry = GlobalFuncs[entity];
- if (entry) {
+ auto found = GlobalFuncs.find(entity);
+ llvm::Function *entry = nullptr;
+ if (found != GlobalFuncs.end()) {
+ entry = found->second;
if (forDefinition) updateLinkageForDefinition(*this, entry, entity);
return entry;
}
@@ -6095,6 +6126,7 @@
entry = createFunction(*this, link, signature);
ApplyIRLinkage({link.getLinkage(), link.getVisibility(), link.getDLLStorage()})
.to(entry, link.isForDefinition());
+ GlobalFuncs.insert({entity, entry});
return entry;
}
@@ -6162,8 +6194,10 @@
LinkEntity entity =
LinkEntity::forAssociatedTypeWitnessTableAccessFunction(conformance,
association);
- llvm::Function *&entry = GlobalFuncs[entity];
- if (entry) {
+ auto found = GlobalFuncs.find(entity);
+ llvm::Function *entry = nullptr;
+ if (found != GlobalFuncs.end()) {
+ entry = found->second;
if (forDefinition) updateLinkageForDefinition(*this, entry, entity);
return entry;
}
@@ -6171,6 +6205,7 @@
auto signature = getAssociatedTypeWitnessTableAccessFunctionSignature();
LinkInfo link = LinkInfo::get(*this, entity, forDefinition);
entry = createFunction(*this, link, signature);
+ GlobalFuncs.insert({entity, entry});
return entry;
}
@@ -6181,8 +6216,10 @@
LinkEntity entity =
LinkEntity::forDefaultAssociatedConformanceAccessor(requirement);
- llvm::Function *&entry = GlobalFuncs[entity];
- if (entry) {
+ auto found = GlobalFuncs.find(entity);
+ llvm::Function *entry = nullptr;
+ if (found != GlobalFuncs.end()) {
+ entry = found->second;
if (forDefinition) updateLinkageForDefinition(*this, entry, entity);
return entry;
}
@@ -6190,6 +6227,7 @@
auto signature = getAssociatedTypeWitnessTableAccessFunctionSignature();
LinkInfo link = LinkInfo::get(*this, entity, forDefinition);
entry = createFunction(*this, link, signature);
+ GlobalFuncs.insert({entity, entry});
return entry;
}
@@ -6197,13 +6235,18 @@
IRGenModule::getAddrOfContinuationPrototype(CanSILFunctionType fnType) {
LinkEntity entity = LinkEntity::forCoroutineContinuationPrototype(fnType);
- llvm::Function *&entry = GlobalFuncs[entity];
- if (entry) return entry;
+ auto found = GlobalFuncs.find(entity);
+ llvm::Function *entry = nullptr;
+ if (found != GlobalFuncs.end()) {
+ entry = found->second;
+ return entry;
+ }
GenericContextScope scope(*this, fnType->getInvocationGenericSignature());
auto signature = Signature::forCoroutineContinuation(*this, fnType);
LinkInfo link = LinkInfo::get(*this, entity, NotForDefinition);
entry = createFunction(*this, link, signature);
+ GlobalFuncs.insert({entity, entry});
return entry;
}
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